answer 3,4,5,7,8 & 13 please just the answer

answer 3,4,5,7 & 8 only please

A lob had an observed time of 10 minutes, a performance rating of . 90 , and an allowance factor of 20 percent of job time. Twenty-five cycles were timed. Standard time for the job in minutes is: QUESTION 3 Chapter 7, Problem 7 If we only consider the machine part, what is the standard machine time for this job? QUESTION 4 Chapter 7, Problem 7 What is the normal time for the worker part of this job? 1.9 2.28 2.59 3.3 Chapter 7, Problem 7 What is the standard timp for this job? (Hint: this job has two pieces of time to consider, machine time and labor time) QUESTION 13 5 points Chapter 7, problem 14 What is the percentage of idle time? 25% 50% 75% 90% Chapter 7, Problem 10 Assuming an allowance of 15 percent of job time, what is the standard time for element 2 based on the observations? (Please keep 3 digits after the decimal point.) QUESTION 8 Chapter 7. Problem 10 Assuming an allowance of 15 percent of job time, what is the standard time for the whole operation based on the observations? (Please keep 2 digits after the decimal point) The data in the following table represent time study observations for a woodworking operation. a. Based on the observations, determine the standard time for the operation, assuming an allowance of 15 percent of job time. b. How many observations would be needed to estimate the mean time for element 2 within 1 percent of its true value with a 95.5 percent confidence? c. How many observations would be needed to estimate the mean time for element 2 within .01 minute of its true value with a 95.5 percent confidence? A worker-machine operation was found to involve 3.3 minutes of machine time per cycle in the course of 40 cycles of stopwatch study. The worker's time averaged 1.9 minutes per cycle, and the worker was given a rating of 120 percent (machine rating is 100 percent). Midway through the study, the worker took a 10-minute rest break. Assuming an allowance factor of 12 percent of work time, determine the standard time for this job. Chapter 7, Problem 7 If we only consider the machine part, what is the standard machine time for this job? QUESTION 4 Chapter 7, Problem 7 What is the normal time for the worker part of this job? 1.9 2.28 2.59 3.3 Chapter 7, Problem 7 What is the standard timp for this job? (Hint: this job has two pieces of time to consider, machine time and labor time) Chapter 7, Problem 10 Assuming an allowance of 15 percent of job time, what is the standard time for element 2 based on the observations? (Please keep 3 digits after the decimal point.) QUESTION 8 Chapter 7. Problem 10 Assuming an allowance of 15 percent of job time, what is the standard time for the whole operation based on the observations? (Please keep 2 digits after the decimal point)